IVGCVSW-7400 POW IVGCVSW-7278 SQUARED_DIFFERENCE.

* Added 2 new operators as ElementWiseBinary ops
* Ref End to End and unit tests
* Serialize and Deserialize tests
* Delegate and Opaque Delegate tests
* TfLite Parser tests

Signed-off-by: John Mcloughlin <john.mcloughlin@arm.com>
Change-Id: I537158127f602f0c41ca0402aa31655cd3bd4281
diff --git a/src/armnnTfLiteParser/test/SquaredDifference.cpp b/src/armnnTfLiteParser/test/SquaredDifference.cpp
new file mode 100644
index 0000000..97b4d3f
--- /dev/null
+++ b/src/armnnTfLiteParser/test/SquaredDifference.cpp
@@ -0,0 +1,101 @@
+//
+// Copyright © 2023 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "ParserFlatbuffersFixture.hpp"
+
+#include <doctest/doctest.h>
+
+
+TEST_SUITE("TensorflowLiteParser_SquaredDifference")
+{
+    struct SquaredDifferenceFixture : public ParserFlatbuffersFixture
+    {
+        explicit SquaredDifferenceFixture(const std::string & inputShape1,
+                                          const std::string & inputShape2,
+                                          const std::string & outputShape,
+                                          const std::string & activation="NONE")
+        {
+            m_JsonString = R"(
+                {
+                    "version": 3,
+                    "operator_codes": [ { "builtin_code": "SQUARED_DIFFERENCE" } ],
+                    "subgraphs": [ {
+                        "tensors": [
+                            {
+                                "shape": )" + inputShape1 + R"(,
+                                "type": "UINT8",
+                                "buffer": 0,
+                                "name": "inputTensor1",
+                                "quantization": {
+                                    "min": [ 0.0 ],
+                                    "max": [ 255.0 ],
+                                    "scale": [ 1.0 ],
+                                    "zero_point": [ 0 ],
+                                }
+                            },
+                            {
+                                "shape": )" + inputShape2 + R"(,
+                                "type": "UINT8",
+                                "buffer": 1,
+                                "name": "inputTensor2",
+                                "quantization": {
+                                    "min": [ 0.0 ],
+                                    "max": [ 255.0 ],
+                                    "scale": [ 1.0 ],
+                                    "zero_point": [ 0 ],
+                                }
+                            },
+                            {
+                                "shape": )" + outputShape + R"( ,
+                                "type": "UINT8",
+                                "buffer": 2,
+                                "name": "outputTensor",
+                                "quantization": {
+                                    "min": [ 0.0 ],
+                                    "max": [ 255.0 ],
+                                    "scale": [ 1.0 ],
+                                    "zero_point": [ 0 ],
+                                }
+                            }
+                        ],
+                        "inputs": [ 0, 1 ],
+                        "outputs": [ 2 ],
+                        "operators": [
+                            {
+                                "opcode_index": 0,
+                                "inputs": [ 0, 1 ],
+                                "outputs": [ 2 ],
+                                "custom_options_format": "FLEXBUFFERS"
+                            }
+                        ],
+                    } ],
+                    "buffers" : [
+                        { },
+                        { }
+                    ]
+                }
+            )";
+            Setup();
+        }
+    };
+
+
+    struct SimpleSquaredDifferenceFixture : SquaredDifferenceFixture
+    {
+        SimpleSquaredDifferenceFixture() : SquaredDifferenceFixture("[ 2, 2 ]",
+                                                                    "[ 2, 2 ]",
+                                                                    "[ 2, 2 ]") {}
+    };
+
+    TEST_CASE_FIXTURE(SimpleSquaredDifferenceFixture, "SimpleSquaredDifference")
+    {
+        RunTest<2, armnn::DataType::QAsymmU8>(
+            0,
+            {{"inputTensor1", { 4, 1, 8, 9 }},
+            {"inputTensor2", { 0, 5, 6, 3 }}},
+            {{"outputTensor", { 16, 16, 4, 36 }}});
+    }
+
+}
\ No newline at end of file